Advertisements
Advertisements
Question
A square park has 40 m as its perimeter. What is the length of its side? Also find its area
Solution
Given perimeter = 40 m
Perimeter of a square = 4 × Length of a side
40 = 4 × Length of a side
∴ Length of its side = `40/4` m
= 10 m
∴ Side of the park = 10 m
Area of a square = (side × side) unit2
= (10 × 10) m2
= 100 m2
∴ Area of the Park = 100 m2
APPEARS IN
RELATED QUESTIONS
The length and the breadth of a rectangular piece of land are 500 m and 300 m respectively. Find the cost of the land, if 1 m2 of the land costs Rs 10,000.
A door of length 2 m and breadth 1 m is fitted in a wall. The length of the wall is 4.5 m and the breadth is 3.6 m (see the given figure). Find the cost of white washing the wall, if the rate of white washing the wall is Rs 20 per m2
Bob wants to cover the floor of a room 3 m wide and 4 m long by squared tiles. If each square tile is of side 0.5 m, then find the number of tiles required to cover the floor of the room.
The length of the side of the square is given below. Find its area.
6 cm
Trace your hand on the squared sheet on the page.
How will you decide whose hand is bigger-your hand or your friend’s hand?
What is the area of your hand? square cm.
What is the area of your friend’s hand? square cm.
A wire is cut into several small pieces. Each of the small pieces is bent into a square of side 2 cm. If the total area of the small squares is 28 square cm, what was the original length of the wire?
The area of each square on a chess board is 4sqcm. Find the area of the board.
(a) At the beginning of game when all the chess men are put on the board, write area of the squares left unoccupied.
(b) Find the area of the squares occupied by chess men.
Find the area of the square whose sides are:
14 cm
In the following figure, ABCD is a square with AB = 15 cm. Find the area of the square BDFE.
A square tile of length 20 cm has four quarter circles at each corner as shown in figure (i). Find the area of shaded portion. Another tile with same dimensions has a circle in the centre of the tile in figure (ii). If the circle touches all four sides of the square tile, find the area of the shaded portion. In which tile, area of shaded portion will be more? (Take, π = 3.14)
 |
 |
| (i) | (ii) |
